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  <div class="headertitle"><div class="title">seq_num.cpp</div></div>
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<a href="seq__num_8cpp.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a id="l00001" name="l00001"></a><span class="lineno">    1</span><span class="comment">/* Flow</span></div>
<div class="line"><a id="l00002" name="l00002"></a><span class="lineno">    2</span><span class="comment"> * Copyright 2023 Akamai Technologies, Inc.</span></div>
<div class="line"><a id="l00003" name="l00003"></a><span class="lineno">    3</span><span class="comment"> *</span></div>
<div class="line"><a id="l00004" name="l00004"></a><span class="lineno">    4</span><span class="comment"> * Licensed under the Apache License, Version 2.0 (the</span></div>
<div class="line"><a id="l00005" name="l00005"></a><span class="lineno">    5</span><span class="comment"> * &quot;License&quot;); you may not use this file except in</span></div>
<div class="line"><a id="l00006" name="l00006"></a><span class="lineno">    6</span><span class="comment"> * compliance with the License.  You may obtain a copy</span></div>
<div class="line"><a id="l00007" name="l00007"></a><span class="lineno">    7</span><span class="comment"> * of the License at</span></div>
<div class="line"><a id="l00008" name="l00008"></a><span class="lineno">    8</span><span class="comment"> *</span></div>
<div class="line"><a id="l00009" name="l00009"></a><span class="lineno">    9</span><span class="comment"> *   https://www.apache.org/licenses/LICENSE-2.0</span></div>
<div class="line"><a id="l00010" name="l00010"></a><span class="lineno">   10</span><span class="comment"> *</span></div>
<div class="line"><a id="l00011" name="l00011"></a><span class="lineno">   11</span><span class="comment"> * Unless required by applicable law or agreed to in</span></div>
<div class="line"><a id="l00012" name="l00012"></a><span class="lineno">   12</span><span class="comment"> * writing, software distributed under the License is</span></div>
<div class="line"><a id="l00013" name="l00013"></a><span class="lineno">   13</span><span class="comment"> * distributed on an &quot;AS IS&quot; BASIS, WITHOUT WARRANTIES OR</span></div>
<div class="line"><a id="l00014" name="l00014"></a><span class="lineno">   14</span><span class="comment"> * CONDITIONS OF ANY KIND, either express or implied.</span></div>
<div class="line"><a id="l00015" name="l00015"></a><span class="lineno">   15</span><span class="comment"> * See the License for the specific language governing</span></div>
<div class="line"><a id="l00016" name="l00016"></a><span class="lineno">   16</span><span class="comment"> * permissions and limitations under the License. */</span></div>
<div class="line"><a id="l00017" name="l00017"></a><span class="lineno">   17</span><span class="comment"></span> </div>
<div class="line"><a id="l00018" name="l00018"></a><span class="lineno">   18</span><span class="comment">/// @file</span></div>
<div class="line"><a id="l00019" name="l00019"></a><span class="lineno">   19</span><span class="comment"></span><span class="preprocessor">#include &quot;<a class="code" href="seq__num_8hpp.html">flow/net_flow/detail/seq_num.hpp</a>&quot;</span></div>
<div class="line"><a id="l00020" name="l00020"></a><span class="lineno">   20</span><span class="preprocessor">#include &quot;<a class="code" href="random_8hpp.html">flow/util/random.hpp</a>&quot;</span></div>
<div class="line"><a id="l00021" name="l00021"></a><span class="lineno">   21</span><span class="preprocessor">#include &lt;boost/functional/hash/hash.hpp&gt;</span></div>
<div class="line"><a id="l00022" name="l00022"></a><span class="lineno">   22</span><span class="preprocessor">#include &lt;limits&gt;</span></div>
<div class="line"><a id="l00023" name="l00023"></a><span class="lineno">   23</span><span class="preprocessor">#include &lt;cmath&gt;</span></div>
<div class="line"><a id="l00024" name="l00024"></a><span class="lineno">   24</span> </div>
<div class="line"><a id="l00025" name="l00025"></a><span class="lineno">   25</span><span class="keyword">namespace </span><a class="code hl_namespace" href="namespaceflow_1_1net__flow.html">flow::net_flow</a></div>
<div class="line"><a id="l00026" name="l00026"></a><span class="lineno">   26</span>{</div>
<div class="line"><a id="l00027" name="l00027"></a><span class="lineno">   27</span> </div>
<div class="line"><a id="l00028" name="l00028"></a><span class="lineno">   28</span><span class="comment">// Static initializations.</span></div>
<div class="line"><a id="l00029" name="l00029"></a><span class="lineno">   29</span> </div>
<div class="line"><a id="l00030" name="l00030"></a><span class="lineno">   30</span><span class="comment">/* Pick max ISN to be in the first half of the numeric range of sequence numbers (NOTE: not</span></div>
<div class="line"><a id="l00031" name="l00031"></a><span class="lineno">   31</span><span class="comment"> * half the bits, but half the numeric range); i.e., about (2^64) / 2.  This is a huge range of</span></div>
<div class="line"><a id="l00032" name="l00032"></a><span class="lineno">   32</span><span class="comment"> * possible ISN, and if the ISN = &lt;this value&gt;, then at gigabit speeds and 1 sequence number per</span></div>
<div class="line"><a id="l00033" name="l00033"></a><span class="lineno">   33</span><span class="comment"> * byte it would take many centuries for the sequence numbers to overflow seq_num_t. */</span></div>
<div class="line"><a id="l00034" name="l00034"></a><span class="lineno">   34</span><span class="keyword">const</span> <a class="code hl_typedef" href="classflow_1_1net__flow_1_1Sequence__number.html#ab307e12c0cf8cefbe7fb1ec8588af2a8">Sequence_number::seq_num_t</a> <a class="code hl_variable" href="classflow_1_1net__flow_1_1Sequence__number_1_1Generator.html#a94493589766b7ae9340a31807bdf4710">Sequence_number::Generator::S_MAX_INIT_SEQ_NUM</a></div>
<div class="line"><a id="l00035" name="l00035"></a><span class="lineno">   35</span>  = std::numeric_limits&lt;seq_num_t&gt;::max() / 2;</div>
<div class="line"><a id="l00036" name="l00036"></a><span class="lineno">   36</span><span class="keyword">const</span> <a class="code hl_typedef" href="namespaceflow.html#a48799f1263cdeedec125be51a3db2b79">Fine_duration</a> <a class="code hl_variable" href="classflow_1_1net__flow_1_1Sequence__number_1_1Generator.html#a9aed10ea9740d60e1fd4de5de05b485b">Sequence_number::Generator::S_TIME_PER_SEQ_NUM</a> = boost::chrono::microseconds(4); <span class="comment">// From RFC 793.</span></div>
<div class="line"><a id="l00037" name="l00037"></a><span class="lineno">   37</span><span class="keyword">const</span> <a class="code hl_typedef" href="namespaceflow.html#a48799f1263cdeedec125be51a3db2b79">Fine_duration</a> <a class="code hl_variable" href="classflow_1_1net__flow_1_1Sequence__number_1_1Generator.html#a585fba13c0fc74e626313ba61a725413">Sequence_number::Generator::S_MIN_DELAY_BETWEEN_ISN</a></div>
<div class="line"><a id="l00038" name="l00038"></a><span class="lineno">   38</span>  = boost::chrono::milliseconds(500); <span class="comment">// From TCP/IP Illustrated Vol. 2: The Implementation (BSD Net/3).</span></div>
<div class="line"><a id="l00039" name="l00039"></a><span class="lineno">   39</span> </div>
<div class="line"><a id="l00040" name="l00040"></a><span class="lineno">   40</span><span class="comment">// Implementations.</span></div>
<div class="line"><a id="l00041" name="l00041"></a><span class="lineno">   41</span> </div>
<div class="line"><a id="l00042" name="l00042"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Sequence__number_1_1Generator.html#a8c0005053088c63c912655222791dd7d">   42</a></span><a class="code hl_function" href="classflow_1_1net__flow_1_1Sequence__number_1_1Generator.html#a8c0005053088c63c912655222791dd7d">Sequence_number::Generator::Generator</a>(<a class="code hl_class" href="classflow_1_1log_1_1Logger.html">log::Logger</a>* logger_ptr) :</div>
<div class="line"><a id="l00043" name="l00043"></a><span class="lineno">   43</span>  log::Log_context(logger_ptr, <a class="code hl_enumeration" href="namespaceflow.html#a3938730ab4b89daf13d027a5f620e7ce">Flow_log_component</a>::S_NET_FLOW)</div>
<div class="line"><a id="l00044" name="l00044"></a><span class="lineno">   44</span>{</div>
<div class="line"><a id="l00045" name="l00045"></a><span class="lineno">   45</span>  <span class="comment">// Nothing.</span></div>
<div class="line"><a id="l00046" name="l00046"></a><span class="lineno">   46</span>}</div>
<div class="line"><a id="l00047" name="l00047"></a><span class="lineno">   47</span> </div>
<div class="line"><a id="l00048" name="l00048"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Sequence__number_1_1Generator.html#a06f094532f4be6ab3b69d27ea39b2d4d">   48</a></span><a class="code hl_class" href="classflow_1_1net__flow_1_1Sequence__number.html">Sequence_number</a> <a class="code hl_function" href="classflow_1_1net__flow_1_1Sequence__number_1_1Generator.html#a06f094532f4be6ab3b69d27ea39b2d4d">Sequence_number::Generator::generate_init_seq_num</a>()</div>
<div class="line"><a id="l00049" name="l00049"></a><span class="lineno">   49</span>{</div>
<div class="line"><a id="l00050" name="l00050"></a><span class="lineno">   50</span>  <span class="keyword">using </span>std::abs;</div>
<div class="line"><a id="l00051" name="l00051"></a><span class="lineno">   51</span>  <span class="keyword">using </span><a class="code hl_class" href="classflow_1_1util_1_1Rnd__gen__uniform__range.html">util::Rnd_gen_uniform_range</a>;</div>
<div class="line"><a id="l00052" name="l00052"></a><span class="lineno">   52</span> </div>
<div class="line"><a id="l00053" name="l00053"></a><span class="lineno">   53</span>  <span class="keyword">const</span> <a class="code hl_typedef" href="namespaceflow.html#a9d9cc2eeb10d398cff5591d446b763b8">Fine_time_pt</a>&amp; now = Fine_clock::now();</div>
<div class="line"><a id="l00054" name="l00054"></a><span class="lineno">   54</span> </div>
<div class="line"><a id="l00055" name="l00055"></a><span class="lineno">   55</span>  <span class="keywordflow">if</span> (m_last_init_seq_num.m_num == 0)</div>
<div class="line"><a id="l00056" name="l00056"></a><span class="lineno">   56</span>  {</div>
<div class="line"><a id="l00057" name="l00057"></a><span class="lineno">   57</span>    <span class="comment">/* First call to this.  Just pick a random-ish ISN from the entire allowed range.  Seed on current time.</span></div>
<div class="line"><a id="l00058" name="l00058"></a><span class="lineno">   58</span><span class="comment">     * We only generate one random number ever (for this `this`), so it&#39;s fine to just seed it here and use once.</span></div>
<div class="line"><a id="l00059" name="l00059"></a><span class="lineno">   59</span><span class="comment">     * @todo Could use a `static` data member RNG.  Good randomness across multiple `this`s isn&#39;t required, so the</span></div>
<div class="line"><a id="l00060" name="l00060"></a><span class="lineno">   60</span><span class="comment">     * various considerations this would introduce -- multi-threadedness, for instance -- might be too much to worry</span></div>
<div class="line"><a id="l00061" name="l00061"></a><span class="lineno">   61</span><span class="comment">     * about given our modest, non-cryptographic needs here. */</span></div>
<div class="line"><a id="l00062" name="l00062"></a><span class="lineno">   62</span> </div>
<div class="line"><a id="l00063" name="l00063"></a><span class="lineno">   63</span>    Rnd_gen_uniform_range&lt;seq_num_t&gt; rnd_single_use(1, S_MAX_INIT_SEQ_NUM); <span class="comment">// 0 is a reserved number; do not use.</span></div>
<div class="line"><a id="l00064" name="l00064"></a><span class="lineno">   64</span>    m_last_init_seq_num.m_num = rnd_single_use();</div>
<div class="line"><a id="l00065" name="l00065"></a><span class="lineno">   65</span>  }</div>
<div class="line"><a id="l00066" name="l00066"></a><span class="lineno">   66</span>  <span class="keywordflow">else</span></div>
<div class="line"><a id="l00067" name="l00067"></a><span class="lineno">   67</span>  {</div>
<div class="line"><a id="l00068" name="l00068"></a><span class="lineno">   68</span>    <span class="comment">// All subsequent calls.</span></div>
<div class="line"><a id="l00069" name="l00069"></a><span class="lineno">   69</span> </div>
<div class="line"><a id="l00070" name="l00070"></a><span class="lineno">   70</span>    <span class="comment">/* For now basically follow RFC 793 (original TCP spec): new sequence number every N</span></div>
<div class="line"><a id="l00071" name="l00071"></a><span class="lineno">   71</span><span class="comment">     * microseconds, with N defined by the RFC.  Additionally, add a large constant M, as if another</span></div>
<div class="line"><a id="l00072" name="l00072"></a><span class="lineno">   72</span><span class="comment">     * 0.5 seconds had passed (as BSD did at least in 1995, as documented in TCP/IP Illustrated:</span></div>
<div class="line"><a id="l00073" name="l00073"></a><span class="lineno">   73</span><span class="comment">     * Vol. 2).  abs() should not be necessary with Fine_clock, but just in case.... */</span></div>
<div class="line"><a id="l00074" name="l00074"></a><span class="lineno">   74</span> </div>
<div class="line"><a id="l00075" name="l00075"></a><span class="lineno">   75</span>    m_last_init_seq_num.m_num +=</div>
<div class="line"><a id="l00076" name="l00076"></a><span class="lineno">   76</span>      <a class="code hl_typedef" href="classflow_1_1net__flow_1_1Sequence__number.html#ab307e12c0cf8cefbe7fb1ec8588af2a8">seq_num_t</a>((now - m_last_isn_generation + S_MIN_DELAY_BETWEEN_ISN) / S_TIME_PER_SEQ_NUM);</div>
<div class="line"><a id="l00077" name="l00077"></a><span class="lineno">   77</span> </div>
<div class="line"><a id="l00078" name="l00078"></a><span class="lineno">   78</span>    <span class="comment">/* It&#39;s incredibly unlikely that overflowed seq_num_t given the times involved, but even if it</span></div>
<div class="line"><a id="l00079" name="l00079"></a><span class="lineno">   79</span><span class="comment">     * did, so be it.  In that case pretty much any random ISN is still OK.  So just assume no</span></div>
<div class="line"><a id="l00080" name="l00080"></a><span class="lineno">   80</span><span class="comment">     * overflow.... */</span></div>
<div class="line"><a id="l00081" name="l00081"></a><span class="lineno">   81</span> </div>
<div class="line"><a id="l00082" name="l00082"></a><span class="lineno">   82</span>    <span class="comment">// Wrap ISN if needed.  (It&#39;s perfectly possible, e.g., if original ISN was right near the end of allowed range.)</span></div>
<div class="line"><a id="l00083" name="l00083"></a><span class="lineno">   83</span>    <span class="keywordflow">if</span> (m_last_init_seq_num.m_num &gt; S_MAX_INIT_SEQ_NUM)</div>
<div class="line"><a id="l00084" name="l00084"></a><span class="lineno">   84</span>    {</div>
<div class="line"><a id="l00085" name="l00085"></a><span class="lineno">   85</span>      <span class="comment">// 0 is a reserved number; do not use.</span></div>
<div class="line"><a id="l00086" name="l00086"></a><span class="lineno">   86</span>      m_last_init_seq_num.m_num = m_last_init_seq_num.m_num - S_MAX_INIT_SEQ_NUM;</div>
<div class="line"><a id="l00087" name="l00087"></a><span class="lineno">   87</span>    }</div>
<div class="line"><a id="l00088" name="l00088"></a><span class="lineno">   88</span>  }</div>
<div class="line"><a id="l00089" name="l00089"></a><span class="lineno">   89</span> </div>
<div class="line"><a id="l00090" name="l00090"></a><span class="lineno">   90</span>  <a class="code hl_define" href="log_8hpp.html#affcf2e4c496ce3f42adf981669c623b8">FLOW_LOG_TRACE</a>(<span class="stringliteral">&quot;Generated ISN [&quot;</span> &lt;&lt; m_last_init_seq_num &lt;&lt; <span class="stringliteral">&quot;].&quot;</span>);</div>
<div class="line"><a id="l00091" name="l00091"></a><span class="lineno">   91</span> </div>
<div class="line"><a id="l00092" name="l00092"></a><span class="lineno">   92</span>  m_last_isn_generation = now;</div>
<div class="line"><a id="l00093" name="l00093"></a><span class="lineno">   93</span>  <span class="keywordflow">return</span> m_last_init_seq_num;</div>
<div class="line"><a id="l00094" name="l00094"></a><span class="lineno">   94</span>} <span class="comment">// Sequence_number::Generator::generate_init_seq_num()</span></div>
<div class="line"><a id="l00095" name="l00095"></a><span class="lineno">   95</span> </div>
<div class="line"><a id="l00096" name="l00096"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Sequence__number.html#ad86f280e517a60ebbe1edfeac7263d6e">   96</a></span><a class="code hl_function" href="classflow_1_1net__flow_1_1Sequence__number.html#ad86f280e517a60ebbe1edfeac7263d6e">Sequence_number::Sequence_number</a>() :</div>
<div class="line"><a id="l00097" name="l00097"></a><span class="lineno">   97</span>  <a class="code hl_variable" href="classflow_1_1net__flow_1_1Sequence__number.html#ac6e88639a0c1b5a1da2bf5b7f203b38c">m_num</a>(0), <a class="code hl_variable" href="classflow_1_1net__flow_1_1Sequence__number.html#ae457e665c370f16e9196b1a88010dcbb">m_num_line_id</a>(0), <a class="code hl_variable" href="classflow_1_1net__flow_1_1Sequence__number.html#adcd83d66fac1a77d9e94f13d1c4671b0">m_zero_point_num</a>(0), <a class="code hl_variable" href="classflow_1_1net__flow_1_1Sequence__number.html#a18436b6983e89f83d139e6c94dbd1e19">m_multiple_size</a>(0)</div>
<div class="line"><a id="l00098" name="l00098"></a><span class="lineno">   98</span>{</div>
<div class="line"><a id="l00099" name="l00099"></a><span class="lineno">   99</span>  <span class="comment">// Nothing.</span></div>
<div class="line"><a id="l00100" name="l00100"></a><span class="lineno">  100</span>}</div>
<div class="line"><a id="l00101" name="l00101"></a><span class="lineno">  101</span> </div>
<div class="line"><a id="l00102" name="l00102"></a><span class="lineno">  102</span><a class="code hl_function" href="classflow_1_1net__flow_1_1Sequence__number.html#ad86f280e517a60ebbe1edfeac7263d6e">Sequence_number::Sequence_number</a>(<span class="keyword">const</span> <a class="code hl_class" href="classflow_1_1net__flow_1_1Sequence__number.html">Sequence_number</a>&amp; source) = <span class="keywordflow">default</span>;</div>
<div class="line"><a id="l00103" name="l00103"></a><span class="lineno">  103</span> </div>
<div class="line"><a id="l00104" name="l00104"></a><span class="lineno">  104</span><a class="code hl_class" href="classflow_1_1net__flow_1_1Sequence__number.html">Sequence_number</a>&amp; <a class="code hl_function" href="classflow_1_1net__flow_1_1Sequence__number.html#aad867d849f5c76125dc9ea1abb649c15">Sequence_number::operator=</a>(<span class="keyword">const</span> <a class="code hl_class" href="classflow_1_1net__flow_1_1Sequence__number.html">Sequence_number</a>&amp; source) = <span class="keywordflow">default</span>;</div>
<div class="line"><a id="l00105" name="l00105"></a><span class="lineno">  105</span> </div>
<div class="line"><a id="l00106" name="l00106"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Sequence__number.html#a1d555c4d74ef4d87f91c8ce51ec47a6b">  106</a></span><span class="keywordtype">bool</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Sequence__number.html#a1d555c4d74ef4d87f91c8ce51ec47a6b">Sequence_number::valid</a>()<span class="keyword"> const</span></div>
<div class="line"><a id="l00107" name="l00107"></a><span class="lineno">  107</span><span class="keyword"></span>{</div>
<div class="line"><a id="l00108" name="l00108"></a><span class="lineno">  108</span>  <span class="keywordflow">return</span> <a class="code hl_variable" href="classflow_1_1net__flow_1_1Sequence__number.html#ac6e88639a0c1b5a1da2bf5b7f203b38c">m_num</a> != 0;</div>
<div class="line"><a id="l00109" name="l00109"></a><span class="lineno">  109</span>}</div>
<div class="line"><a id="l00110" name="l00110"></a><span class="lineno">  110</span> </div>
<div class="line"><a id="l00111" name="l00111"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Sequence__number.html#a3ffb36c06efb99de2c36c69678b51acb">  111</a></span><a class="code hl_typedef" href="classflow_1_1net__flow_1_1Sequence__number.html#ab83e641aa9497115f6dbaf76b92f73c6">Sequence_number::seq_num_delta_t</a> <a class="code hl_function" href="classflow_1_1net__flow_1_1Sequence__number.html#a3ffb36c06efb99de2c36c69678b51acb">Sequence_number::operator-</a>(<span class="keyword">const</span> <a class="code hl_class" href="classflow_1_1net__flow_1_1Sequence__number.html">Sequence_number</a>&amp; rhs)<span class="keyword"> const</span></div>
<div class="line"><a id="l00112" name="l00112"></a><span class="lineno">  112</span><span class="keyword"></span>{</div>
<div class="line"><a id="l00113" name="l00113"></a><span class="lineno">  113</span>  <span class="comment">/* This can technically overflow (since seq_num_delta_t is a signed int64_t, while the raw #s are</span></div>
<div class="line"><a id="l00114" name="l00114"></a><span class="lineno">  114</span><span class="comment">   * unsigned).  This is advertised in the method comment and should not usually be a concern. */</span></div>
<div class="line"><a id="l00115" name="l00115"></a><span class="lineno">  115</span>  <span class="keywordflow">return</span> <a class="code hl_typedef" href="classflow_1_1net__flow_1_1Sequence__number.html#ab83e641aa9497115f6dbaf76b92f73c6">seq_num_delta_t</a>(<a class="code hl_variable" href="classflow_1_1net__flow_1_1Sequence__number.html#ac6e88639a0c1b5a1da2bf5b7f203b38c">m_num</a> - rhs.<a class="code hl_variable" href="classflow_1_1net__flow_1_1Sequence__number.html#ac6e88639a0c1b5a1da2bf5b7f203b38c">m_num</a>);</div>
<div class="line"><a id="l00116" name="l00116"></a><span class="lineno">  116</span>}</div>
<div class="line"><a id="l00117" name="l00117"></a><span class="lineno">  117</span> </div>
<div class="line"><a id="l00118" name="l00118"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Sequence__number.html#a88c07f9b2c18c962b68a3886e2f005f5">  118</a></span><a class="code hl_class" href="classflow_1_1net__flow_1_1Sequence__number.html">Sequence_number</a>&amp; <a class="code hl_function" href="classflow_1_1net__flow_1_1Sequence__number.html#a88c07f9b2c18c962b68a3886e2f005f5">Sequence_number::operator+=</a>(<a class="code hl_typedef" href="classflow_1_1net__flow_1_1Sequence__number.html#ab83e641aa9497115f6dbaf76b92f73c6">seq_num_delta_t</a> delta)</div>
<div class="line"><a id="l00119" name="l00119"></a><span class="lineno">  119</span>{</div>
<div class="line"><a id="l00120" name="l00120"></a><span class="lineno">  120</span>  <a class="code hl_variable" href="classflow_1_1net__flow_1_1Sequence__number.html#ac6e88639a0c1b5a1da2bf5b7f203b38c">m_num</a> += delta; <span class="comment">// Can be negative.</span></div>
<div class="line"><a id="l00121" name="l00121"></a><span class="lineno">  121</span>  <span class="keywordflow">return</span> *<span class="keyword">this</span>;</div>
<div class="line"><a id="l00122" name="l00122"></a><span class="lineno">  122</span>}</div>
<div class="line"><a id="l00123" name="l00123"></a><span class="lineno">  123</span> </div>
<div class="line"><a id="l00124" name="l00124"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Sequence__number.html#aab26c0d5ac005a150ec9c31c3d83802c">  124</a></span><a class="code hl_class" href="classflow_1_1net__flow_1_1Sequence__number.html">Sequence_number</a>&amp; <a class="code hl_function" href="classflow_1_1net__flow_1_1Sequence__number.html#aab26c0d5ac005a150ec9c31c3d83802c">Sequence_number::operator-=</a>(<a class="code hl_typedef" href="classflow_1_1net__flow_1_1Sequence__number.html#ab83e641aa9497115f6dbaf76b92f73c6">seq_num_delta_t</a> delta)</div>
<div class="line"><a id="l00125" name="l00125"></a><span class="lineno">  125</span>{</div>
<div class="line"><a id="l00126" name="l00126"></a><span class="lineno">  126</span>  <span class="keywordflow">return</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Sequence__number.html#a88c07f9b2c18c962b68a3886e2f005f5">operator+=</a>(-delta);</div>
<div class="line"><a id="l00127" name="l00127"></a><span class="lineno">  127</span>}</div>
<div class="line"><a id="l00128" name="l00128"></a><span class="lineno">  128</span> </div>
<div class="line"><a id="l00129" name="l00129"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Sequence__number.html#a3273e706e3184fd8647d7a8ed77b3a2b">  129</a></span><a class="code hl_class" href="classflow_1_1net__flow_1_1Sequence__number.html">Sequence_number</a> <a class="code hl_function" href="classflow_1_1net__flow_1_1Sequence__number.html#a3273e706e3184fd8647d7a8ed77b3a2b">Sequence_number::operator+</a>(<a class="code hl_typedef" href="classflow_1_1net__flow_1_1Sequence__number.html#ab83e641aa9497115f6dbaf76b92f73c6">seq_num_delta_t</a> delta)<span class="keyword"> const</span></div>
<div class="line"><a id="l00130" name="l00130"></a><span class="lineno">  130</span><span class="keyword"></span>{</div>
<div class="line"><a id="l00131" name="l00131"></a><span class="lineno">  131</span>  <span class="keywordflow">return</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Sequence__number.html#ad86f280e517a60ebbe1edfeac7263d6e">Sequence_number</a>(*<span class="keyword">this</span>) += delta;</div>
<div class="line"><a id="l00132" name="l00132"></a><span class="lineno">  132</span>}</div>
<div class="line"><a id="l00133" name="l00133"></a><span class="lineno">  133</span> </div>
<div class="line"><a id="l00134" name="l00134"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Sequence__number.html#a0fa5305610db905ff775abdf6c148b62">  134</a></span><a class="code hl_class" href="classflow_1_1net__flow_1_1Sequence__number.html">Sequence_number</a> <a class="code hl_function" href="classflow_1_1net__flow_1_1Sequence__number.html#a3ffb36c06efb99de2c36c69678b51acb">Sequence_number::operator-</a>(<a class="code hl_typedef" href="classflow_1_1net__flow_1_1Sequence__number.html#ab83e641aa9497115f6dbaf76b92f73c6">seq_num_delta_t</a> delta)<span class="keyword"> const</span></div>
<div class="line"><a id="l00135" name="l00135"></a><span class="lineno">  135</span><span class="keyword"></span>{</div>
<div class="line"><a id="l00136" name="l00136"></a><span class="lineno">  136</span>  <span class="keywordflow">return</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Sequence__number.html#a3273e706e3184fd8647d7a8ed77b3a2b">operator+</a>(-delta);</div>
<div class="line"><a id="l00137" name="l00137"></a><span class="lineno">  137</span>}</div>
<div class="line"><a id="l00138" name="l00138"></a><span class="lineno">  138</span> </div>
<div class="line"><a id="l00139" name="l00139"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Sequence__number.html#a24819702817b8730ec27a39675768d55">  139</a></span><span class="keywordtype">bool</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Sequence__number.html#a24819702817b8730ec27a39675768d55">Sequence_number::operator==</a>(<span class="keyword">const</span> <a class="code hl_class" href="classflow_1_1net__flow_1_1Sequence__number.html">Sequence_number</a>&amp; rhs)<span class="keyword"> const</span></div>
<div class="line"><a id="l00140" name="l00140"></a><span class="lineno">  140</span><span class="keyword"></span>{</div>
<div class="line"><a id="l00141" name="l00141"></a><span class="lineno">  141</span>  <span class="keywordflow">return</span> <a class="code hl_variable" href="classflow_1_1net__flow_1_1Sequence__number.html#ac6e88639a0c1b5a1da2bf5b7f203b38c">m_num</a> == rhs.<a class="code hl_variable" href="classflow_1_1net__flow_1_1Sequence__number.html#ac6e88639a0c1b5a1da2bf5b7f203b38c">m_num</a>;</div>
<div class="line"><a id="l00142" name="l00142"></a><span class="lineno">  142</span>}</div>
<div class="line"><a id="l00143" name="l00143"></a><span class="lineno">  143</span> </div>
<div class="line"><a id="l00144" name="l00144"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Sequence__number.html#af4a83d85ed26f8d0e0c81375d5505258">  144</a></span><span class="keywordtype">bool</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Sequence__number.html#af4a83d85ed26f8d0e0c81375d5505258">Sequence_number::operator!=</a>(<span class="keyword">const</span> <a class="code hl_class" href="classflow_1_1net__flow_1_1Sequence__number.html">Sequence_number</a>&amp; rhs)<span class="keyword"> const</span></div>
<div class="line"><a id="l00145" name="l00145"></a><span class="lineno">  145</span><span class="keyword"></span>{</div>
<div class="line"><a id="l00146" name="l00146"></a><span class="lineno">  146</span>  <span class="keywordflow">return</span> !(*<span class="keyword">this</span> == rhs);</div>
<div class="line"><a id="l00147" name="l00147"></a><span class="lineno">  147</span>}</div>
<div class="line"><a id="l00148" name="l00148"></a><span class="lineno">  148</span> </div>
<div class="line"><a id="l00149" name="l00149"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Sequence__number.html#a40b55e448b1ef23467e9f33b2c62d01f">  149</a></span><span class="keywordtype">bool</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Sequence__number.html#a40b55e448b1ef23467e9f33b2c62d01f">Sequence_number::operator&lt;</a>(<span class="keyword">const</span> <a class="code hl_class" href="classflow_1_1net__flow_1_1Sequence__number.html">Sequence_number</a>&amp; rhs)<span class="keyword"> const</span></div>
<div class="line"><a id="l00150" name="l00150"></a><span class="lineno">  150</span><span class="keyword"></span>{</div>
<div class="line"><a id="l00151" name="l00151"></a><span class="lineno">  151</span>  <span class="keywordflow">return</span> <a class="code hl_variable" href="classflow_1_1net__flow_1_1Sequence__number.html#ac6e88639a0c1b5a1da2bf5b7f203b38c">m_num</a> &lt; rhs.<a class="code hl_variable" href="classflow_1_1net__flow_1_1Sequence__number.html#ac6e88639a0c1b5a1da2bf5b7f203b38c">m_num</a>;</div>
<div class="line"><a id="l00152" name="l00152"></a><span class="lineno">  152</span>}</div>
<div class="line"><a id="l00153" name="l00153"></a><span class="lineno">  153</span> </div>
<div class="line"><a id="l00154" name="l00154"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Sequence__number.html#ae5ee8f6f299fbc5e578bcfd337bf520b">  154</a></span><span class="keywordtype">bool</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Sequence__number.html#ae5ee8f6f299fbc5e578bcfd337bf520b">Sequence_number::operator&gt;</a>(<span class="keyword">const</span> <a class="code hl_class" href="classflow_1_1net__flow_1_1Sequence__number.html">Sequence_number</a>&amp; rhs)<span class="keyword"> const</span></div>
<div class="line"><a id="l00155" name="l00155"></a><span class="lineno">  155</span><span class="keyword"></span>{</div>
<div class="line"><a id="l00156" name="l00156"></a><span class="lineno">  156</span>  <span class="keywordflow">return</span> rhs &lt; *<span class="keyword">this</span>;</div>
<div class="line"><a id="l00157" name="l00157"></a><span class="lineno">  157</span>}</div>
<div class="line"><a id="l00158" name="l00158"></a><span class="lineno">  158</span> </div>
<div class="line"><a id="l00159" name="l00159"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Sequence__number.html#af5b74ff5645f0bf49d0e20773fa5dca7">  159</a></span><span class="keywordtype">bool</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Sequence__number.html#af5b74ff5645f0bf49d0e20773fa5dca7">Sequence_number::operator&gt;=</a>(<span class="keyword">const</span> <a class="code hl_class" href="classflow_1_1net__flow_1_1Sequence__number.html">Sequence_number</a>&amp; rhs)<span class="keyword"> const</span></div>
<div class="line"><a id="l00160" name="l00160"></a><span class="lineno">  160</span><span class="keyword"></span>{</div>
<div class="line"><a id="l00161" name="l00161"></a><span class="lineno">  161</span>  <span class="keywordflow">return</span> !(*<span class="keyword">this</span> &lt; rhs);</div>
<div class="line"><a id="l00162" name="l00162"></a><span class="lineno">  162</span>}</div>
<div class="line"><a id="l00163" name="l00163"></a><span class="lineno">  163</span> </div>
<div class="line"><a id="l00164" name="l00164"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Sequence__number.html#a426ba917e01cba32ddad0d8c245a731b">  164</a></span><span class="keywordtype">bool</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Sequence__number.html#a426ba917e01cba32ddad0d8c245a731b">Sequence_number::operator&lt;=</a>(<span class="keyword">const</span> <a class="code hl_class" href="classflow_1_1net__flow_1_1Sequence__number.html">Sequence_number</a>&amp; rhs)<span class="keyword"> const</span></div>
<div class="line"><a id="l00165" name="l00165"></a><span class="lineno">  165</span><span class="keyword"></span>{</div>
<div class="line"><a id="l00166" name="l00166"></a><span class="lineno">  166</span>  <span class="keywordflow">return</span> rhs &gt;= *<span class="keyword">this</span>;</div>
<div class="line"><a id="l00167" name="l00167"></a><span class="lineno">  167</span>}</div>
<div class="line"><a id="l00168" name="l00168"></a><span class="lineno">  168</span> </div>
<div class="line"><a id="l00169" name="l00169"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Sequence__number.html#a1883ad1ea308ad6fe72f75b45b5d32e8">  169</a></span>std::ostream&amp; <a class="code hl_function" href="namespaceflow_1_1net__flow.html#ab9f537c84f77e9b8fa742fc5dc6d5693">operator&lt;&lt;</a>(std::ostream&amp; os, <span class="keyword">const</span> <a class="code hl_class" href="classflow_1_1net__flow_1_1Sequence__number.html">Sequence_number</a>&amp; seq_num)</div>
<div class="line"><a id="l00170" name="l00170"></a><span class="lineno">  170</span>{</div>
<div class="line"><a id="l00171" name="l00171"></a><span class="lineno">  171</span>  <span class="comment">// First the number line ID if any; 0 means unknown so just omit it.</span></div>
<div class="line"><a id="l00172" name="l00172"></a><span class="lineno">  172</span>  <span class="keywordflow">if</span> (seq_num.<a class="code hl_variable" href="classflow_1_1net__flow_1_1Sequence__number.html#ae457e665c370f16e9196b1a88010dcbb">m_num_line_id</a> != 0)</div>
<div class="line"><a id="l00173" name="l00173"></a><span class="lineno">  173</span>  {</div>
<div class="line"><a id="l00174" name="l00174"></a><span class="lineno">  174</span>    os &lt;&lt; seq_num.<a class="code hl_variable" href="classflow_1_1net__flow_1_1Sequence__number.html#ae457e665c370f16e9196b1a88010dcbb">m_num_line_id</a>;</div>
<div class="line"><a id="l00175" name="l00175"></a><span class="lineno">  175</span>  }</div>
<div class="line"><a id="l00176" name="l00176"></a><span class="lineno">  176</span> </div>
<div class="line"><a id="l00177" name="l00177"></a><span class="lineno">  177</span>  <span class="keyword">const</span> <span class="keywordtype">bool</span> use_multiple = seq_num.<a class="code hl_variable" href="classflow_1_1net__flow_1_1Sequence__number.html#a18436b6983e89f83d139e6c94dbd1e19">m_multiple_size</a> != 0; <span class="comment">// Multiples (segmentation) is in use.</span></div>
<div class="line"><a id="l00178" name="l00178"></a><span class="lineno">  178</span>  <span class="keyword">const</span> <span class="keywordtype">bool</span> non_zero_offset = seq_num.<a class="code hl_variable" href="classflow_1_1net__flow_1_1Sequence__number.html#adcd83d66fac1a77d9e94f13d1c4671b0">m_zero_point_num</a> != 0; <span class="comment">// Magnitude is non-zero.</span></div>
<div class="line"><a id="l00179" name="l00179"></a><span class="lineno">  179</span> </div>
<div class="line"><a id="l00180" name="l00180"></a><span class="lineno">  180</span>  <span class="comment">/* First assume the magnitude is non-zero.  Then we show the sign, - or +.  However, if the zero point is itself 0</span></div>
<div class="line"><a id="l00181" name="l00181"></a><span class="lineno">  181</span><span class="comment">   * then any non-zero magnitude is positive; so simply omit the sign.  Next, show the magnitude (m_num offset by</span></div>
<div class="line"><a id="l00182" name="l00182"></a><span class="lineno">  182</span><span class="comment">   * m_zero_point).  If `use_multiple`, then much as we omitted the zero point value itself and just showed the sign</span></div>
<div class="line"><a id="l00183" name="l00183"></a><span class="lineno">  183</span><span class="comment">   * in its place, show the &#39;x&#39; multiplication sign here; then show the multiple count, then &quot;%R&quot;; where R is the</span></div>
<div class="line"><a id="l00184" name="l00184"></a><span class="lineno">  184</span><span class="comment">   * remainder beyond the multiples, omitted if R = 0.  Finally, if `use_multiple`, then simply show the magnitude</span></div>
<div class="line"><a id="l00185" name="l00185"></a><span class="lineno">  185</span><span class="comment">   * (can think it of it as a multiple of 1, for which R = 0 always, and the &#39;x&#39; is omitted).  Examples:</span></div>
<div class="line"><a id="l00186" name="l00186"></a><span class="lineno">  186</span><span class="comment">   * -x3 (3B to left of zero), +x2%5 (2B+5 to right of zero), x454324123 (454324123B absolute),</span></div>
<div class="line"><a id="l00187" name="l00187"></a><span class="lineno">  187</span><span class="comment">   * 454324123123 (454324123 absolute).</span></div>
<div class="line"><a id="l00188" name="l00188"></a><span class="lineno">  188</span><span class="comment">   *</span></div>
<div class="line"><a id="l00189" name="l00189"></a><span class="lineno">  189</span><span class="comment">   * Finally, what if magnitude IS zero?  For convenience to help interpret other numbers on the same line we use</span></div>
<div class="line"><a id="l00190" name="l00190"></a><span class="lineno">  190</span><span class="comment">   * this opportunity to print out the metadata set; and a simple indication that THIS value has magnitude 0.</span></div>
<div class="line"><a id="l00191" name="l00191"></a><span class="lineno">  191</span><span class="comment">   * Think of the format as a non-zero-magnitude value, with the &quot;implied&quot; (omitted) values in the previous paragraph</span></div>
<div class="line"><a id="l00192" name="l00192"></a><span class="lineno">  192</span><span class="comment">   * explicitly written out.  So, first is the sign, written as the zero point followed by the sign.</span></div>
<div class="line"><a id="l00193" name="l00193"></a><span class="lineno">  193</span><span class="comment">   * Next is the multiple, as the multiple followed by &#39;x&#39;.  The coup de grace, is, simply &#39;0&#39;, since that&#39;s what this</span></div>
<div class="line"><a id="l00194" name="l00194"></a><span class="lineno">  194</span><span class="comment">   * value is.  Finally, each of the two segments mentioned is omitted in the degenerate cases (zero point = 0,</span></div>
<div class="line"><a id="l00195" name="l00195"></a><span class="lineno">  195</span><span class="comment">   * no multiple used). Examples: 0 (!use_multiple, !non_zero_offset), 342342342+1024x0 (use_multiple, non_zero_offset),</span></div>
<div class="line"><a id="l00196" name="l00196"></a><span class="lineno">  196</span><span class="comment">   * 342342342+0 (!use_multiple, !non_zero_offset).</span></div>
<div class="line"><a id="l00197" name="l00197"></a><span class="lineno">  197</span><span class="comment">   *</span></div>
<div class="line"><a id="l00198" name="l00198"></a><span class="lineno">  198</span><span class="comment">   * The above is hair/formal, but try to correlate the examples in the 2 paragraphs to see how the practical output</span></div>
<div class="line"><a id="l00199" name="l00199"></a><span class="lineno">  199</span><span class="comment">   * makes some sense. */</span></div>
<div class="line"><a id="l00200" name="l00200"></a><span class="lineno">  200</span> </div>
<div class="line"><a id="l00201" name="l00201"></a><span class="lineno">  201</span>  <a class="code hl_typedef" href="classflow_1_1net__flow_1_1Sequence__number.html#ab307e12c0cf8cefbe7fb1ec8588af2a8">Sequence_number::seq_num_t</a> magnitude = seq_num.<a class="code hl_variable" href="classflow_1_1net__flow_1_1Sequence__number.html#ac6e88639a0c1b5a1da2bf5b7f203b38c">m_num</a>;</div>
<div class="line"><a id="l00202" name="l00202"></a><span class="lineno">  202</span>  <span class="keywordflow">if</span> (magnitude == seq_num.<a class="code hl_variable" href="classflow_1_1net__flow_1_1Sequence__number.html#adcd83d66fac1a77d9e94f13d1c4671b0">m_zero_point_num</a>)</div>
<div class="line"><a id="l00203" name="l00203"></a><span class="lineno">  203</span>  {</div>
<div class="line"><a id="l00204" name="l00204"></a><span class="lineno">  204</span>    <span class="comment">// No sign =&gt; show reference values and the constant 0.</span></div>
<div class="line"><a id="l00205" name="l00205"></a><span class="lineno">  205</span>    <span class="keywordflow">if</span> (non_zero_offset)</div>
<div class="line"><a id="l00206" name="l00206"></a><span class="lineno">  206</span>    {</div>
<div class="line"><a id="l00207" name="l00207"></a><span class="lineno">  207</span>      os &lt;&lt; seq_num.<a class="code hl_variable" href="classflow_1_1net__flow_1_1Sequence__number.html#adcd83d66fac1a77d9e94f13d1c4671b0">m_zero_point_num</a> &lt;&lt; <span class="charliteral">&#39;+&#39;</span>;</div>
<div class="line"><a id="l00208" name="l00208"></a><span class="lineno">  208</span>    }</div>
<div class="line"><a id="l00209" name="l00209"></a><span class="lineno">  209</span>    <span class="keywordflow">if</span> (use_multiple)</div>
<div class="line"><a id="l00210" name="l00210"></a><span class="lineno">  210</span>    {</div>
<div class="line"><a id="l00211" name="l00211"></a><span class="lineno">  211</span>      os &lt;&lt; seq_num.<a class="code hl_variable" href="classflow_1_1net__flow_1_1Sequence__number.html#a18436b6983e89f83d139e6c94dbd1e19">m_multiple_size</a> &lt;&lt; <span class="charliteral">&#39;x&#39;</span>;</div>
<div class="line"><a id="l00212" name="l00212"></a><span class="lineno">  212</span>    }</div>
<div class="line"><a id="l00213" name="l00213"></a><span class="lineno">  213</span>    os &lt;&lt; <span class="charliteral">&#39;0&#39;</span>;</div>
<div class="line"><a id="l00214" name="l00214"></a><span class="lineno">  214</span>  }</div>
<div class="line"><a id="l00215" name="l00215"></a><span class="lineno">  215</span>  <span class="keywordflow">else</span></div>
<div class="line"><a id="l00216" name="l00216"></a><span class="lineno">  216</span>  {</div>
<div class="line"><a id="l00217" name="l00217"></a><span class="lineno">  217</span>    <span class="comment">// Yes sign =&gt; show NO reference values; show the offset vs. zero pt., possibly as a count of multiples + remainder.</span></div>
<div class="line"><a id="l00218" name="l00218"></a><span class="lineno">  218</span>    <span class="keywordflow">if</span> (non_zero_offset)</div>
<div class="line"><a id="l00219" name="l00219"></a><span class="lineno">  219</span>    {</div>
<div class="line"><a id="l00220" name="l00220"></a><span class="lineno">  220</span>      <span class="comment">// (Subtlety: avoid any underflow situation by only performing (A - B) when A &gt; B.)</span></div>
<div class="line"><a id="l00221" name="l00221"></a><span class="lineno">  221</span>      <span class="keywordflow">if</span> (magnitude &gt; seq_num.<a class="code hl_variable" href="classflow_1_1net__flow_1_1Sequence__number.html#adcd83d66fac1a77d9e94f13d1c4671b0">m_zero_point_num</a>)</div>
<div class="line"><a id="l00222" name="l00222"></a><span class="lineno">  222</span>      {</div>
<div class="line"><a id="l00223" name="l00223"></a><span class="lineno">  223</span>        os &lt;&lt; <span class="charliteral">&#39;+&#39;</span>;</div>
<div class="line"><a id="l00224" name="l00224"></a><span class="lineno">  224</span>        magnitude -= seq_num.<a class="code hl_variable" href="classflow_1_1net__flow_1_1Sequence__number.html#adcd83d66fac1a77d9e94f13d1c4671b0">m_zero_point_num</a>;</div>
<div class="line"><a id="l00225" name="l00225"></a><span class="lineno">  225</span>      }</div>
<div class="line"><a id="l00226" name="l00226"></a><span class="lineno">  226</span>      <span class="keywordflow">else</span></div>
<div class="line"><a id="l00227" name="l00227"></a><span class="lineno">  227</span>      {</div>
<div class="line"><a id="l00228" name="l00228"></a><span class="lineno">  228</span>        assert(magnitude &lt; seq_num.<a class="code hl_variable" href="classflow_1_1net__flow_1_1Sequence__number.html#adcd83d66fac1a77d9e94f13d1c4671b0">m_zero_point_num</a>);</div>
<div class="line"><a id="l00229" name="l00229"></a><span class="lineno">  229</span>        os &lt;&lt; <span class="charliteral">&#39;-&#39;</span>;</div>
<div class="line"><a id="l00230" name="l00230"></a><span class="lineno">  230</span>        magnitude = seq_num.<a class="code hl_variable" href="classflow_1_1net__flow_1_1Sequence__number.html#adcd83d66fac1a77d9e94f13d1c4671b0">m_zero_point_num</a> - magnitude;</div>
<div class="line"><a id="l00231" name="l00231"></a><span class="lineno">  231</span>      }</div>
<div class="line"><a id="l00232" name="l00232"></a><span class="lineno">  232</span>    }</div>
<div class="line"><a id="l00233" name="l00233"></a><span class="lineno">  233</span> </div>
<div class="line"><a id="l00234" name="l00234"></a><span class="lineno">  234</span>    <span class="keywordflow">if</span> (use_multiple)</div>
<div class="line"><a id="l00235" name="l00235"></a><span class="lineno">  235</span>    {</div>
<div class="line"><a id="l00236" name="l00236"></a><span class="lineno">  236</span>      os &lt;&lt; <span class="charliteral">&#39;x&#39;</span> &lt;&lt; (magnitude / seq_num.<a class="code hl_variable" href="classflow_1_1net__flow_1_1Sequence__number.html#a18436b6983e89f83d139e6c94dbd1e19">m_multiple_size</a>);</div>
<div class="line"><a id="l00237" name="l00237"></a><span class="lineno">  237</span>      <span class="keyword">const</span> <span class="keyword">auto</span> rem = magnitude % seq_num.<a class="code hl_variable" href="classflow_1_1net__flow_1_1Sequence__number.html#a18436b6983e89f83d139e6c94dbd1e19">m_multiple_size</a>;</div>
<div class="line"><a id="l00238" name="l00238"></a><span class="lineno">  238</span>      <span class="keywordflow">if</span> (rem != 0)</div>
<div class="line"><a id="l00239" name="l00239"></a><span class="lineno">  239</span>      {</div>
<div class="line"><a id="l00240" name="l00240"></a><span class="lineno">  240</span>        os &lt;&lt; <span class="charliteral">&#39;%&#39;</span> &lt;&lt; rem;</div>
<div class="line"><a id="l00241" name="l00241"></a><span class="lineno">  241</span>      }</div>
<div class="line"><a id="l00242" name="l00242"></a><span class="lineno">  242</span>    }</div>
<div class="line"><a id="l00243" name="l00243"></a><span class="lineno">  243</span>    <span class="keywordflow">else</span></div>
<div class="line"><a id="l00244" name="l00244"></a><span class="lineno">  244</span>    {</div>
<div class="line"><a id="l00245" name="l00245"></a><span class="lineno">  245</span>      os &lt;&lt; magnitude;</div>
<div class="line"><a id="l00246" name="l00246"></a><span class="lineno">  246</span>    }</div>
<div class="line"><a id="l00247" name="l00247"></a><span class="lineno">  247</span>  }</div>
<div class="line"><a id="l00248" name="l00248"></a><span class="lineno">  248</span> </div>
<div class="line"><a id="l00249" name="l00249"></a><span class="lineno">  249</span>  <span class="keywordflow">return</span> os;</div>
<div class="line"><a id="l00250" name="l00250"></a><span class="lineno">  250</span>}</div>
<div class="line"><a id="l00251" name="l00251"></a><span class="lineno">  251</span> </div>
<div class="line"><a id="l00252" name="l00252"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Sequence__number.html#a934068f778e1809e4aff773c7e7d5297">  252</a></span><span class="keywordtype">size_t</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Sequence__number.html#a934068f778e1809e4aff773c7e7d5297">Sequence_number::hash</a>()<span class="keyword"> const</span></div>
<div class="line"><a id="l00253" name="l00253"></a><span class="lineno">  253</span><span class="keyword"></span>{</div>
<div class="line"><a id="l00254" name="l00254"></a><span class="lineno">  254</span>  <span class="keyword">using </span><a class="code hl_function" href="namespaceflow_1_1net__flow.html#a152200ba9432e5ca229e41a1c5d9d226">boost::hash_value</a>;</div>
<div class="line"><a id="l00255" name="l00255"></a><span class="lineno">  255</span>  <span class="keywordflow">return</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Sequence__number.html#a8ff266d6afa275d3332d99487b77394b">hash_value</a>(<a class="code hl_variable" href="classflow_1_1net__flow_1_1Sequence__number.html#ac6e88639a0c1b5a1da2bf5b7f203b38c">m_num</a>);</div>
<div class="line"><a id="l00256" name="l00256"></a><span class="lineno">  256</span>}</div>
<div class="line"><a id="l00257" name="l00257"></a><span class="lineno">  257</span> </div>
<div class="line"><a id="l00258" name="l00258"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Sequence__number.html#ac18fe030885b2ed3dfa290d8eec8c501">  258</a></span><span class="keyword">const</span> <a class="code hl_typedef" href="classflow_1_1net__flow_1_1Sequence__number.html#ab307e12c0cf8cefbe7fb1ec8588af2a8">Sequence_number::seq_num_t</a>&amp; <a class="code hl_function" href="classflow_1_1net__flow_1_1Sequence__number.html#ac18fe030885b2ed3dfa290d8eec8c501">Sequence_number::raw_num_ref</a>()<span class="keyword"> const</span></div>
<div class="line"><a id="l00259" name="l00259"></a><span class="lineno">  259</span><span class="keyword"></span>{</div>
<div class="line"><a id="l00260" name="l00260"></a><span class="lineno">  260</span>  <span class="keywordflow">return</span> <a class="code hl_variable" href="classflow_1_1net__flow_1_1Sequence__number.html#ac6e88639a0c1b5a1da2bf5b7f203b38c">m_num</a>;</div>
<div class="line"><a id="l00261" name="l00261"></a><span class="lineno">  261</span>}</div>
<div class="line"><a id="l00262" name="l00262"></a><span class="lineno">  262</span> </div>
<div class="line"><a id="l00263" name="l00263"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Sequence__number.html#a95cb615ec74460c88b6fe5a605fb18a8">  263</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Sequence__number.html#a95cb615ec74460c88b6fe5a605fb18a8">Sequence_number::set_raw_num</a>(<a class="code hl_typedef" href="classflow_1_1net__flow_1_1Sequence__number.html#ab307e12c0cf8cefbe7fb1ec8588af2a8">seq_num_t</a> num)</div>
<div class="line"><a id="l00264" name="l00264"></a><span class="lineno">  264</span>{</div>
<div class="line"><a id="l00265" name="l00265"></a><span class="lineno">  265</span>  <a class="code hl_variable" href="classflow_1_1net__flow_1_1Sequence__number.html#ac6e88639a0c1b5a1da2bf5b7f203b38c">m_num</a> = num;</div>
<div class="line"><a id="l00266" name="l00266"></a><span class="lineno">  266</span>}</div>
<div class="line"><a id="l00267" name="l00267"></a><span class="lineno">  267</span> </div>
<div class="line"><a id="l00268" name="l00268"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Sequence__number.html#a77ce8cf348e93caa8bb03f22f7b7d120">  268</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Sequence__number.html#a77ce8cf348e93caa8bb03f22f7b7d120">Sequence_number::set_metadata</a>(<span class="keywordtype">char</span> num_line_id, <span class="keyword">const</span> <a class="code hl_class" href="classflow_1_1net__flow_1_1Sequence__number.html">Sequence_number</a>&amp; zero_point, <a class="code hl_typedef" href="classflow_1_1net__flow_1_1Sequence__number.html#ab83e641aa9497115f6dbaf76b92f73c6">seq_num_delta_t</a> multiple_size)</div>
<div class="line"><a id="l00269" name="l00269"></a><span class="lineno">  269</span>{</div>
<div class="line"><a id="l00270" name="l00270"></a><span class="lineno">  270</span>  <a class="code hl_variable" href="classflow_1_1net__flow_1_1Sequence__number.html#ae457e665c370f16e9196b1a88010dcbb">m_num_line_id</a> = num_line_id;</div>
<div class="line"><a id="l00271" name="l00271"></a><span class="lineno">  271</span>  <a class="code hl_variable" href="classflow_1_1net__flow_1_1Sequence__number.html#adcd83d66fac1a77d9e94f13d1c4671b0">m_zero_point_num</a> = zero_point.<a class="code hl_variable" href="classflow_1_1net__flow_1_1Sequence__number.html#ac6e88639a0c1b5a1da2bf5b7f203b38c">m_num</a>;</div>
<div class="line"><a id="l00272" name="l00272"></a><span class="lineno">  272</span>  <a class="code hl_variable" href="classflow_1_1net__flow_1_1Sequence__number.html#a18436b6983e89f83d139e6c94dbd1e19">m_multiple_size</a> = multiple_size;</div>
<div class="line"><a id="l00273" name="l00273"></a><span class="lineno">  273</span>}</div>
<div class="line"><a id="l00274" name="l00274"></a><span class="lineno">  274</span> </div>
<div class="line"><a id="l00275" name="l00275"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Sequence__number.html#a8ff266d6afa275d3332d99487b77394b">  275</a></span><span class="keywordtype">size_t</span> <a class="code hl_function" href="namespaceflow_1_1net__flow.html#a152200ba9432e5ca229e41a1c5d9d226">hash_value</a>(<span class="keyword">const</span> <a class="code hl_class" href="classflow_1_1net__flow_1_1Sequence__number.html">Sequence_number</a>&amp; seq_num)</div>
<div class="line"><a id="l00276" name="l00276"></a><span class="lineno">  276</span>{</div>
<div class="line"><a id="l00277" name="l00277"></a><span class="lineno">  277</span>  <span class="keywordflow">return</span> seq_num.<a class="code hl_function" href="classflow_1_1net__flow_1_1Sequence__number.html#a934068f778e1809e4aff773c7e7d5297">hash</a>();</div>
<div class="line"><a id="l00278" name="l00278"></a><span class="lineno">  278</span>}</div>
<div class="line"><a id="l00279" name="l00279"></a><span class="lineno">  279</span> </div>
<div class="line"><a id="l00280" name="l00280"></a><span class="lineno">  280</span>} <span class="comment">// namespace flow::net_flow</span></div>
<div class="ttc" id="aclassflow_1_1log_1_1Logger_html"><div class="ttname"><a href="classflow_1_1log_1_1Logger.html">flow::log::Logger</a></div><div class="ttdoc">Interface that the user should implement, passing the implementing Logger into logging classes (Flow'...</div><div class="ttdef"><b>Definition:</b> <a href="log_8hpp_source.html#l01280">log.hpp:1284</a></div></div>
<div class="ttc" id="aclassflow_1_1net__flow_1_1Sequence__number_1_1Generator_html_a06f094532f4be6ab3b69d27ea39b2d4d"><div class="ttname"><a href="classflow_1_1net__flow_1_1Sequence__number_1_1Generator.html#a06f094532f4be6ab3b69d27ea39b2d4d">flow::net_flow::Sequence_number::Generator::generate_init_seq_num</a></div><div class="ttdeci">Sequence_number generate_init_seq_num()</div><div class="ttdoc">Returns an initial sequence number (ISN) for use in a new connection.</div><div class="ttdef"><b>Definition:</b> <a href="seq__num_8cpp_source.html#l00048">seq_num.cpp:48</a></div></div>
<div class="ttc" id="aclassflow_1_1net__flow_1_1Sequence__number_1_1Generator_html_a585fba13c0fc74e626313ba61a725413"><div class="ttname"><a href="classflow_1_1net__flow_1_1Sequence__number_1_1Generator.html#a585fba13c0fc74e626313ba61a725413">flow::net_flow::Sequence_number::Generator::S_MIN_DELAY_BETWEEN_ISN</a></div><div class="ttdeci">static const Fine_duration S_MIN_DELAY_BETWEEN_ISN</div><div class="ttdoc">In addition to the actual time passed between two ISN generations, pretend this much additional time ...</div><div class="ttdef"><b>Definition:</b> <a href="seq__num_8hpp_source.html#l00414">seq_num.hpp:414</a></div></div>
<div class="ttc" id="aclassflow_1_1net__flow_1_1Sequence__number_1_1Generator_html_a8c0005053088c63c912655222791dd7d"><div class="ttname"><a href="classflow_1_1net__flow_1_1Sequence__number_1_1Generator.html#a8c0005053088c63c912655222791dd7d">flow::net_flow::Sequence_number::Generator::Generator</a></div><div class="ttdeci">Generator(log::Logger *logger)</div><div class="ttdoc">Constructs Generator.</div><div class="ttdef"><b>Definition:</b> <a href="seq__num_8cpp_source.html#l00042">seq_num.cpp:42</a></div></div>
<div class="ttc" id="aclassflow_1_1net__flow_1_1Sequence__number_1_1Generator_html_a94493589766b7ae9340a31807bdf4710"><div class="ttname"><a href="classflow_1_1net__flow_1_1Sequence__number_1_1Generator.html#a94493589766b7ae9340a31807bdf4710">flow::net_flow::Sequence_number::Generator::S_MAX_INIT_SEQ_NUM</a></div><div class="ttdeci">static const seq_num_t S_MAX_INIT_SEQ_NUM</div><div class="ttdoc">The maximum allowed value for the initial sequence number (ISN) for a given Flow-protocol connection ...</div><div class="ttdef"><b>Definition:</b> <a href="seq__num_8hpp_source.html#l00405">seq_num.hpp:405</a></div></div>
<div class="ttc" id="aclassflow_1_1net__flow_1_1Sequence__number_1_1Generator_html_a9aed10ea9740d60e1fd4de5de05b485b"><div class="ttname"><a href="classflow_1_1net__flow_1_1Sequence__number_1_1Generator.html#a9aed10ea9740d60e1fd4de5de05b485b">flow::net_flow::Sequence_number::Generator::S_TIME_PER_SEQ_NUM</a></div><div class="ttdeci">static const Fine_duration S_TIME_PER_SEQ_NUM</div><div class="ttdoc">The ISN given out at a given time should increment every N; this is the value of N.</div><div class="ttdef"><b>Definition:</b> <a href="seq__num_8hpp_source.html#l00408">seq_num.hpp:408</a></div></div>
<div class="ttc" id="aclassflow_1_1net__flow_1_1Sequence__number_html"><div class="ttname"><a href="classflow_1_1net__flow_1_1Sequence__number.html">flow::net_flow::Sequence_number</a></div><div class="ttdoc">An internal net_flow sequence number identifying a piece of data.</div><div class="ttdef"><b>Definition:</b> <a href="seq__num_8hpp_source.html#l00125">seq_num.hpp:126</a></div></div>
<div class="ttc" id="aclassflow_1_1net__flow_1_1Sequence__number_html_a18436b6983e89f83d139e6c94dbd1e19"><div class="ttname"><a href="classflow_1_1net__flow_1_1Sequence__number.html#a18436b6983e89f83d139e6c94dbd1e19">flow::net_flow::Sequence_number::m_multiple_size</a></div><div class="ttdeci">seq_num_delta_t m_multiple_size</div><div class="ttdoc">Expected size of a full contiguous &quot;block&quot; of these numbers; 0 = unknown/blocks not expected....</div><div class="ttdef"><b>Definition:</b> <a href="seq__num_8hpp_source.html#l00356">seq_num.hpp:356</a></div></div>
<div class="ttc" id="aclassflow_1_1net__flow_1_1Sequence__number_html_a1d555c4d74ef4d87f91c8ce51ec47a6b"><div class="ttname"><a href="classflow_1_1net__flow_1_1Sequence__number.html#a1d555c4d74ef4d87f91c8ce51ec47a6b">flow::net_flow::Sequence_number::valid</a></div><div class="ttdeci">bool valid() const</div><div class="ttdoc">Returns true if and only if *this != Sequence_number() (i.e., is non-zero).</div><div class="ttdef"><b>Definition:</b> <a href="seq__num_8cpp_source.html#l00106">seq_num.cpp:106</a></div></div>
<div class="ttc" id="aclassflow_1_1net__flow_1_1Sequence__number_html_a24819702817b8730ec27a39675768d55"><div class="ttname"><a href="classflow_1_1net__flow_1_1Sequence__number.html#a24819702817b8730ec27a39675768d55">flow::net_flow::Sequence_number::operator==</a></div><div class="ttdeci">bool operator==(const Sequence_number &amp;rhs) const</div><div class="ttdoc">Whether *this is the same sequence number as rhs.</div><div class="ttdef"><b>Definition:</b> <a href="seq__num_8cpp_source.html#l00139">seq_num.cpp:139</a></div></div>
<div class="ttc" id="aclassflow_1_1net__flow_1_1Sequence__number_html_a3273e706e3184fd8647d7a8ed77b3a2b"><div class="ttname"><a href="classflow_1_1net__flow_1_1Sequence__number.html#a3273e706e3184fd8647d7a8ed77b3a2b">flow::net_flow::Sequence_number::operator+</a></div><div class="ttdeci">Sequence_number operator+(seq_num_delta_t delta) const</div><div class="ttdoc">Returns new sequence number that is *this advanced (or reversed) by the given distance.</div><div class="ttdef"><b>Definition:</b> <a href="seq__num_8cpp_source.html#l00129">seq_num.cpp:129</a></div></div>
<div class="ttc" id="aclassflow_1_1net__flow_1_1Sequence__number_html_a3ffb36c06efb99de2c36c69678b51acb"><div class="ttname"><a href="classflow_1_1net__flow_1_1Sequence__number.html#a3ffb36c06efb99de2c36c69678b51acb">flow::net_flow::Sequence_number::operator-</a></div><div class="ttdeci">seq_num_delta_t operator-(const Sequence_number &amp;rhs) const</div><div class="ttdoc">Returns the distance from *this to rhs.</div><div class="ttdef"><b>Definition:</b> <a href="seq__num_8cpp_source.html#l00111">seq_num.cpp:111</a></div></div>
<div class="ttc" id="aclassflow_1_1net__flow_1_1Sequence__number_html_a40b55e448b1ef23467e9f33b2c62d01f"><div class="ttname"><a href="classflow_1_1net__flow_1_1Sequence__number.html#a40b55e448b1ef23467e9f33b2c62d01f">flow::net_flow::Sequence_number::operator&lt;</a></div><div class="ttdeci">bool operator&lt;(const Sequence_number &amp;rhs) const</div><div class="ttdoc">Whether *this is less than rhs.</div><div class="ttdef"><b>Definition:</b> <a href="seq__num_8cpp_source.html#l00149">seq_num.cpp:149</a></div></div>
<div class="ttc" id="aclassflow_1_1net__flow_1_1Sequence__number_html_a426ba917e01cba32ddad0d8c245a731b"><div class="ttname"><a href="classflow_1_1net__flow_1_1Sequence__number.html#a426ba917e01cba32ddad0d8c245a731b">flow::net_flow::Sequence_number::operator&lt;=</a></div><div class="ttdeci">bool operator&lt;=(const Sequence_number &amp;rhs) const</div><div class="ttdoc">Return !(*this &gt; rhs).</div><div class="ttdef"><b>Definition:</b> <a href="seq__num_8cpp_source.html#l00164">seq_num.cpp:164</a></div></div>
<div class="ttc" id="aclassflow_1_1net__flow_1_1Sequence__number_html_a77ce8cf348e93caa8bb03f22f7b7d120"><div class="ttname"><a href="classflow_1_1net__flow_1_1Sequence__number.html#a77ce8cf348e93caa8bb03f22f7b7d120">flow::net_flow::Sequence_number::set_metadata</a></div><div class="ttdeci">void set_metadata(char num_line_id=0, const Sequence_number &amp;zero_point=Sequence_number(), seq_num_delta_t multiple_size=0)</div><div class="ttdoc">Updates the full set of metadata (used at least for convenient convention-based logging but not actua...</div><div class="ttdef"><b>Definition:</b> <a href="seq__num_8cpp_source.html#l00268">seq_num.cpp:268</a></div></div>
<div class="ttc" id="aclassflow_1_1net__flow_1_1Sequence__number_html_a88c07f9b2c18c962b68a3886e2f005f5"><div class="ttname"><a href="classflow_1_1net__flow_1_1Sequence__number.html#a88c07f9b2c18c962b68a3886e2f005f5">flow::net_flow::Sequence_number::operator+=</a></div><div class="ttdeci">Sequence_number &amp; operator+=(seq_num_delta_t delta)</div><div class="ttdoc">Advances (or reverses) this sequence number by the given distance.</div><div class="ttdef"><b>Definition:</b> <a href="seq__num_8cpp_source.html#l00118">seq_num.cpp:118</a></div></div>
<div class="ttc" id="aclassflow_1_1net__flow_1_1Sequence__number_html_a8ff266d6afa275d3332d99487b77394b"><div class="ttname"><a href="classflow_1_1net__flow_1_1Sequence__number.html#a8ff266d6afa275d3332d99487b77394b">flow::net_flow::Sequence_number::hash_value</a></div><div class="ttdeci">size_t hash_value(const Sequence_number &amp;seq_num)</div><div class="ttdoc">Free function that returns seq_num.hash(); has to be a free function named hash_value for boost....</div><div class="ttdef"><b>Definition:</b> <a href="seq__num_8cpp_source.html#l00275">seq_num.cpp:275</a></div></div>
<div class="ttc" id="aclassflow_1_1net__flow_1_1Sequence__number_html_a934068f778e1809e4aff773c7e7d5297"><div class="ttname"><a href="classflow_1_1net__flow_1_1Sequence__number.html#a934068f778e1809e4aff773c7e7d5297">flow::net_flow::Sequence_number::hash</a></div><div class="ttdeci">size_t hash() const</div><div class="ttdoc">Hash value of this Sequence_number for unordered_*&lt;&gt;.</div><div class="ttdef"><b>Definition:</b> <a href="seq__num_8cpp_source.html#l00252">seq_num.cpp:252</a></div></div>
<div class="ttc" id="aclassflow_1_1net__flow_1_1Sequence__number_html_a95cb615ec74460c88b6fe5a605fb18a8"><div class="ttname"><a href="classflow_1_1net__flow_1_1Sequence__number.html#a95cb615ec74460c88b6fe5a605fb18a8">flow::net_flow::Sequence_number::set_raw_num</a></div><div class="ttdeci">void set_raw_num(seq_num_t num)</div><div class="ttdoc">Sets the raw sequence number.</div><div class="ttdef"><b>Definition:</b> <a href="seq__num_8cpp_source.html#l00263">seq_num.cpp:263</a></div></div>
<div class="ttc" id="aclassflow_1_1net__flow_1_1Sequence__number_html_aab26c0d5ac005a150ec9c31c3d83802c"><div class="ttname"><a href="classflow_1_1net__flow_1_1Sequence__number.html#aab26c0d5ac005a150ec9c31c3d83802c">flow::net_flow::Sequence_number::operator-=</a></div><div class="ttdeci">Sequence_number &amp; operator-=(seq_num_delta_t delta)</div><div class="ttdoc">Equivalent to: operator+=(-delta).</div><div class="ttdef"><b>Definition:</b> <a href="seq__num_8cpp_source.html#l00124">seq_num.cpp:124</a></div></div>
<div class="ttc" id="aclassflow_1_1net__flow_1_1Sequence__number_html_aad867d849f5c76125dc9ea1abb649c15"><div class="ttname"><a href="classflow_1_1net__flow_1_1Sequence__number.html#aad867d849f5c76125dc9ea1abb649c15">flow::net_flow::Sequence_number::operator=</a></div><div class="ttdeci">Sequence_number &amp; operator=(const Sequence_number &amp;source)</div><div class="ttdoc">Copy operator.</div></div>
<div class="ttc" id="aclassflow_1_1net__flow_1_1Sequence__number_html_ab307e12c0cf8cefbe7fb1ec8588af2a8"><div class="ttname"><a href="classflow_1_1net__flow_1_1Sequence__number.html#ab307e12c0cf8cefbe7fb1ec8588af2a8">flow::net_flow::Sequence_number::seq_num_t</a></div><div class="ttdeci">uint64_t seq_num_t</div><div class="ttdoc">Raw sequence number type.</div><div class="ttdef"><b>Definition:</b> <a href="seq__num_8hpp_source.html#l00138">seq_num.hpp:138</a></div></div>
<div class="ttc" id="aclassflow_1_1net__flow_1_1Sequence__number_html_ab83e641aa9497115f6dbaf76b92f73c6"><div class="ttname"><a href="classflow_1_1net__flow_1_1Sequence__number.html#ab83e641aa9497115f6dbaf76b92f73c6">flow::net_flow::Sequence_number::seq_num_delta_t</a></div><div class="ttdeci">int64_t seq_num_delta_t</div><div class="ttdoc">Integer type used to express differences (distances) between Sequence_numbers.</div><div class="ttdef"><b>Definition:</b> <a href="seq__num_8hpp_source.html#l00150">seq_num.hpp:150</a></div></div>
<div class="ttc" id="aclassflow_1_1net__flow_1_1Sequence__number_html_ac18fe030885b2ed3dfa290d8eec8c501"><div class="ttname"><a href="classflow_1_1net__flow_1_1Sequence__number.html#ac18fe030885b2ed3dfa290d8eec8c501">flow::net_flow::Sequence_number::raw_num_ref</a></div><div class="ttdeci">const seq_num_t &amp; raw_num_ref() const</div><div class="ttdoc">Provides the raw sequence number.</div><div class="ttdef"><b>Definition:</b> <a href="seq__num_8cpp_source.html#l00258">seq_num.cpp:258</a></div></div>
<div class="ttc" id="aclassflow_1_1net__flow_1_1Sequence__number_html_ac6e88639a0c1b5a1da2bf5b7f203b38c"><div class="ttname"><a href="classflow_1_1net__flow_1_1Sequence__number.html#ac6e88639a0c1b5a1da2bf5b7f203b38c">flow::net_flow::Sequence_number::m_num</a></div><div class="ttdeci">seq_num_t m_num</div><div class="ttdoc">The raw sequence number. This is the only datum used in algorithms. The others are only for logging a...</div><div class="ttdef"><b>Definition:</b> <a href="seq__num_8hpp_source.html#l00347">seq_num.hpp:347</a></div></div>
<div class="ttc" id="aclassflow_1_1net__flow_1_1Sequence__number_html_ad86f280e517a60ebbe1edfeac7263d6e"><div class="ttname"><a href="classflow_1_1net__flow_1_1Sequence__number.html#ad86f280e517a60ebbe1edfeac7263d6e">flow::net_flow::Sequence_number::Sequence_number</a></div><div class="ttdeci">Sequence_number()</div><div class="ttdoc">Constructs sequence number that is zero (not a valid sequence number; less than all others).</div><div class="ttdef"><b>Definition:</b> <a href="seq__num_8cpp_source.html#l00096">seq_num.cpp:96</a></div></div>
<div class="ttc" id="aclassflow_1_1net__flow_1_1Sequence__number_html_adcd83d66fac1a77d9e94f13d1c4671b0"><div class="ttname"><a href="classflow_1_1net__flow_1_1Sequence__number.html#adcd83d66fac1a77d9e94f13d1c4671b0">flow::net_flow::Sequence_number::m_zero_point_num</a></div><div class="ttdeci">seq_num_t m_zero_point_num</div><div class="ttdoc">Value for m_num such that the magnitude is zero. See set_metadata().</div><div class="ttdef"><b>Definition:</b> <a href="seq__num_8hpp_source.html#l00353">seq_num.hpp:353</a></div></div>
<div class="ttc" id="aclassflow_1_1net__flow_1_1Sequence__number_html_ae457e665c370f16e9196b1a88010dcbb"><div class="ttname"><a href="classflow_1_1net__flow_1_1Sequence__number.html#ae457e665c370f16e9196b1a88010dcbb">flow::net_flow::Sequence_number::m_num_line_id</a></div><div class="ttdeci">char m_num_line_id</div><div class="ttdoc">Identifies the owner number line; char(0) = unknown/none. See set_metadata().</div><div class="ttdef"><b>Definition:</b> <a href="seq__num_8hpp_source.html#l00350">seq_num.hpp:350</a></div></div>
<div class="ttc" id="aclassflow_1_1net__flow_1_1Sequence__number_html_ae5ee8f6f299fbc5e578bcfd337bf520b"><div class="ttname"><a href="classflow_1_1net__flow_1_1Sequence__number.html#ae5ee8f6f299fbc5e578bcfd337bf520b">flow::net_flow::Sequence_number::operator&gt;</a></div><div class="ttdeci">bool operator&gt;(const Sequence_number &amp;rhs) const</div><div class="ttdoc">Return rhs &lt; *this.</div><div class="ttdef"><b>Definition:</b> <a href="seq__num_8cpp_source.html#l00154">seq_num.cpp:154</a></div></div>
<div class="ttc" id="aclassflow_1_1net__flow_1_1Sequence__number_html_af4a83d85ed26f8d0e0c81375d5505258"><div class="ttname"><a href="classflow_1_1net__flow_1_1Sequence__number.html#af4a83d85ed26f8d0e0c81375d5505258">flow::net_flow::Sequence_number::operator!=</a></div><div class="ttdeci">bool operator!=(const Sequence_number &amp;rhs) const</div><div class="ttdoc">Return !(*this == rhs).</div><div class="ttdef"><b>Definition:</b> <a href="seq__num_8cpp_source.html#l00144">seq_num.cpp:144</a></div></div>
<div class="ttc" id="aclassflow_1_1net__flow_1_1Sequence__number_html_af5b74ff5645f0bf49d0e20773fa5dca7"><div class="ttname"><a href="classflow_1_1net__flow_1_1Sequence__number.html#af5b74ff5645f0bf49d0e20773fa5dca7">flow::net_flow::Sequence_number::operator&gt;=</a></div><div class="ttdeci">bool operator&gt;=(const Sequence_number &amp;rhs) const</div><div class="ttdoc">Return rhs &lt;= *this.</div><div class="ttdef"><b>Definition:</b> <a href="seq__num_8cpp_source.html#l00159">seq_num.cpp:159</a></div></div>
<div class="ttc" id="aclassflow_1_1util_1_1Rnd__gen__uniform__range_html"><div class="ttname"><a href="classflow_1_1util_1_1Rnd__gen__uniform__range.html">flow::util::Rnd_gen_uniform_range</a></div><div class="ttdoc">Simple, non-thread-safe uniform-range random number generator.</div><div class="ttdef"><b>Definition:</b> <a href="random_8hpp_source.html#l00101">random.hpp:104</a></div></div>
<div class="ttc" id="alog_8hpp_html_affcf2e4c496ce3f42adf981669c623b8"><div class="ttname"><a href="log_8hpp.html#affcf2e4c496ce3f42adf981669c623b8">FLOW_LOG_TRACE</a></div><div class="ttdeci">#define FLOW_LOG_TRACE(ARG_stream_fragment)</div><div class="ttdoc">Logs a TRACE message into flow::log::Logger *get_logger() with flow::log::Component get_log_component...</div><div class="ttdef"><b>Definition:</b> <a href="log_8hpp_source.html#l00227">log.hpp:227</a></div></div>
<div class="ttc" id="anamespaceflow_1_1net__flow_html"><div class="ttname"><a href="namespaceflow_1_1net__flow.html">flow::net_flow</a></div><div class="ttdoc">Flow module containing the API and implementation of the Flow network protocol, a TCP-inspired stream...</div><div class="ttdef"><b>Definition:</b> <a href="asio_2node_8cpp_source.html#l00024">node.cpp:25</a></div></div>
<div class="ttc" id="anamespaceflow_1_1net__flow_html_a152200ba9432e5ca229e41a1c5d9d226"><div class="ttname"><a href="namespaceflow_1_1net__flow.html#a152200ba9432e5ca229e41a1c5d9d226">flow::net_flow::hash_value</a></div><div class="ttdeci">size_t hash_value(const Sequence_number &amp;seq_num)</div><div class="ttdoc">Free function that returns seq_num.hash(); has to be a free function named hash_value for boost....</div><div class="ttdef"><b>Definition:</b> <a href="seq__num_8cpp_source.html#l00275">seq_num.cpp:275</a></div></div>
<div class="ttc" id="anamespaceflow_1_1net__flow_html_ab9f537c84f77e9b8fa742fc5dc6d5693"><div class="ttname"><a href="namespaceflow_1_1net__flow.html#ab9f537c84f77e9b8fa742fc5dc6d5693">flow::net_flow::operator&lt;&lt;</a></div><div class="ttdeci">std::ostream &amp; operator&lt;&lt;(std::ostream &amp;os, const Congestion_control_selector::Strategy_choice &amp;strategy_choice)</div><div class="ttdoc">Serializes a Peer_socket_options::Congestion_control_strategy_choice enum to a standard ostream – the...</div><div class="ttdef"><b>Definition:</b> <a href="cong__ctl_8cpp_source.html#l00146">cong_ctl.cpp:146</a></div></div>
<div class="ttc" id="anamespaceflow_html_a3938730ab4b89daf13d027a5f620e7ce"><div class="ttname"><a href="namespaceflow.html#a3938730ab4b89daf13d027a5f620e7ce">flow::Flow_log_component</a></div><div class="ttdeci">Flow_log_component</div><div class="ttdoc">The flow::log::Component payload enumeration comprising various log components used by Flow's own int...</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00637">common.hpp:638</a></div></div>
<div class="ttc" id="anamespaceflow_html_a48799f1263cdeedec125be51a3db2b79"><div class="ttname"><a href="namespaceflow.html#a48799f1263cdeedec125be51a3db2b79">flow::Fine_duration</a></div><div class="ttdeci">Fine_clock::duration Fine_duration</div><div class="ttdoc">A high-res time duration as computed from two Fine_time_pts.</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00416">common.hpp:416</a></div></div>
<div class="ttc" id="anamespaceflow_html_a9d9cc2eeb10d398cff5591d446b763b8"><div class="ttname"><a href="namespaceflow.html#a9d9cc2eeb10d398cff5591d446b763b8">flow::Fine_time_pt</a></div><div class="ttdeci">Fine_clock::time_point Fine_time_pt</div><div class="ttdoc">A high-res time point as returned by Fine_clock::now() and suitable for precise time math in general.</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00413">common.hpp:413</a></div></div>
<div class="ttc" id="arandom_8hpp_html"><div class="ttname"><a href="random_8hpp.html">random.hpp</a></div></div>
<div class="ttc" id="aseq__num_8hpp_html"><div class="ttname"><a href="seq__num_8hpp.html">seq_num.hpp</a></div></div>
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